kung pang center channel-assist lang, kahit ForceField 3 or 4 pwede na!
Actually hindi lang naman "assist" ang ginagawa ng subwoofer when you integrate them to a certain speaker channel...
You make that channel have a wider frequency response especially sa lower end, you can even set that particular channel to Large or Full Band depending on the subwoofer capabilities
The more capable the sub is, the better...